Lizaur A, Marco L, Cebrian R
Servicio Cirugia Ortopedica, Hospital General, Elda, Spain.
J Bone Joint Surg Br. 1997 Jul;79(4):626-9. doi: 10.1302/0301-620x.79b4.7242.
We report a prospective study, using multivariate analysis, of the factors which influence the range of movement after total knee arthroplasty in 74 patients with 83 arthroplasties at a mean follow-up of 23.6 months (12 to 41). All the patients had a diagnosis of osteoarthritis, a severely disabled knee with a Knee Society system score of less than 60, varus deformity, no previous surgery to the knee, identical prostheses implanted with a similar surgical technique, and no postoperative complications which may have affected the range of movement. The most important factors which influenced the range of movement after arthroplasty were the preoperative range of flexion and the body-weight of the patient. There was a significant improvement in flexion and reduction of flexion contracture at each successive review up to 12 months after operation. Patients with restricted movement before operation showed a satisfactory gain at final review.
我们报告了一项前瞻性研究，采用多变量分析方法，研究了74例患者83次全膝关节置换术后平均随访23.6个月（12至41个月）时影响活动范围的因素。所有患者均诊断为骨关节炎，膝关节严重功能障碍，膝关节协会系统评分低于60分，有内翻畸形，此前未接受过膝关节手术，采用相似的手术技术植入相同的假体，且无可能影响活动范围的术后并发症。影响置换术后活动范围的最重要因素是术前屈曲范围和患者体重。术后直至12个月的每次连续复查时，屈曲均有显著改善，屈曲挛缩有所减轻。术前活动受限的患者在最终复查时活动范围有令人满意的增加。
